It sucks that they gave you conflicting information that resulted in this but I wouldn't trust having my cloud infrastructure payments be handled using a single credit card.
If you have a spend of over $2500/mo you can apply for invoiced billing directly from Google or if you have less than that you can contact a GCP reseller partner to get invoiced by them.
Some GCP reseller partners also have a close relationship with Google and the contacts that come with that relationship.
Yeah, those steps seems about right.
But you'd probably want to set up the new provider as your first step and upgrade from the legacy free edition as your last step.
I also like to point the MX records to the new provider before doing the backup so there will be no incoming messages while the backup is in progress.
Disclaimer: i haven't followed the steps myself since i'm paying for a personal Workspace account since a few years ago.
> The single license permits either a single user to use the software on multiple computers or multiple users to use the software on a single computer. However, it does not allow multiple users to ever use the software on multiple computers, regardless of whether such use is concurrent. [0]
After removing the attribute entirely it was able to successfully reclaim the server.